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HomeRepair HelpBosch Washer RepairBosch Washer won't drain Repair
Bosch Washer won't drain
If your Bosch washer won't drain, start by checking the drain pump, the most likely cause of a washer not draining. Small objects or clothing can block the pump, and a pump that remains noisy during the drain cycle may need replacement. If the pump is clear, a faulty control board may not send voltage to the pump. A defective timer can cause the same problem by failing to activate the pump at the correct time. Next, inspect the drain hose for kinks, crushing, or clogs caused by lint and hair, especially if the washer has moved during a cycle. Debris in the door lock or door latch assembly can also prevent the washing machine from draining properly, and an obstructed lid switch assembly or door lock may keep the cycle from advancing. Before testing electrical parts, disconnect power and use the wiring diagram and a multimeter safely. Whether you have a front load washer not draining or another Bosch model, enter your model number to find the exact replacement drain pump, control board, timer, drain hose, door lock, or lid switch for your specific washing machine.
01 - Bosch Washing Machine Drain Pump
Sometimes, small objects or articles of clothing can get caught in the drain pump. To determine if anything is blocking the drain pump, remove the drain pump and check the pump for obstructions. If the drain pump is clear of obstructions, but is still noisy during the drain cycle, replace the drain pump.
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02 - Bosch Washing Machine Control Board
Since a washing machine control board provides voltage to nearly all of the washer's electrical components, a faulty board may not be sending power to the drain pump during the drain cycle. You can inspect the board for signs of burning or a shorted-out component. You can also use a multimeter to test for incoming power to the drain pump after reviewing the appliance's wiring diagram. If no voltage is present when the washer is in the drain cycle, it's likely the control board is defective and will need to be replaced.
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03 - Bosch Washing Machine Timer
On some washing machine models, a timer is used to determine when voltage is to be sent to the washer's electrical components. A faulty timer may not be sending power to the drain pump during the drain cycle. You can inspect the timer for signs of burning or a shorted-out component. You can also use a multimeter to test for incoming power to the drain pump after reviewing the appliance's wiring diagram. If no voltage is present when the washer is in the drain cycle, it's likely the timer is defective and will need to be replaced.
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04 - Drain hose is clogged or kinked
Check to see if the drain hose is kinked or crushed. If your washer "dances" during cycles, it may have moved and kinked the hose. The drain hose could also be clogged with lint or hair. You can use a thin, long-handled brush to clean the hose.
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05 - Door lock or door latch obstructed
Remove any debris in the door lock or latch assembly. Any debris that is in the lock or latch can prevent the washer from working properly.
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06 - Obstructed Lid switch assembly or Door lock
Remove any debris in the door lock or lid switch assembly. Any debris that is in the lock or latch can prevent the washer from working properly.
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Frequently Asked Questions
Why is my Bosch washer not draining?
How do I drain a Bosch washing machine with standing water?
What should I check if my Bosch washer won't drain but the drain pump is clear?
Can I test the Bosch washer drain pump with a multimeter?
How do I find the correct Bosch washer drain pump replacement part?
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